Combined type adjustable compound ecological floating island

Abstract

The invention discloses a combined type adjustable compound ecological floating island. A main body structure of the combined type adjustable compound ecological floating island comprises fixing columns, a floating island frame and plant planting baskets. The lower end of each fixing column is inserted into a cement cubic anchor, and sinks into water, and the upper end of each fixing column is 30cm-60cm higher than the water surface. The floating island frame is in a net structure, is divided into two layers including an upper layer and a lower layer, and is connected with the fixing columns through fixing holes at four corners of the floating island frame in an inserting mode. The plant planting baskets are independently arranged, and are buckled with the floating island frame. Plant planting baskets fixed on the surface layer of the floating island frame are used for planting emergent aquatic plants, such as cattails and cypella herbertii, and plant planting baskets fixed on the lower layer of the floating island frame are used for planting submerged plants, such as hornworts and eel grass, and are fixed through light materials, such as haydite and vermiculite. Biological film filler is hung on the lower portions of the plant planting baskets. The combined type adjustable compound ecological floating island is simple in structure, and facilitates industrial production. Each layer of the combined type adjustable compound ecological floating island can be adjusted to a reasonable depth according to water depth, water body transparency and illumination conditions so as to adapt to different water bodies and requirements. Synergistic effects of the emergent aquatic plants, the submerged plants and microorganism are made full use of, and a removal effect is good.

Description

technical field [0001] The invention belongs to the field of bio-ecological restoration of slightly polluted water bodies, and in particular relates to a combined adjustable composite ecological floating island. Background technique [0002] With the deepening of the industrialization process, environmental problems have become increasingly apparent, and have gradually expanded from cities to villages and towns. Fertilizers and pesticides applied on farmland are not effectively absorbed by crops and flow into lakes and reservoirs along with rainfall runoff. According to the survey, 76.3% of the 26 nationally controlled key lakes (reservoirs) have water quality lower than Class III standards for surface water. The main pollutants are ammonia nitrogen, total nitrogen, total phosphorus and permanganate index. In addition, the municipal sewage pipe network is not perfect, and domestic sewage and industrial wastewater are discharged beyond the standard, seriously endangering my...

AI Technical Summary

Problems solved by technology

However, due to the limited utilization of nitrogen and phosphorus by the plants themselves, when the depth of the water body is large, the lower water body cannot be effectively purified; and the floating island system is not easy to manage, and it is difficult to harvest plants. Unharvested plant residues are immersed in water, which is likely to cause secondary pollution.

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